The table lists the maximum supported number of components in a project.

Item

Protocol

System limit
(max. per project)

Edge controller

IP/Modbus/M-Bus

1

Fan coil system limits

Item

Protocol

System limit
(max. per project)

Thermostat

Modbus

100

Heat/cooling meter

M-Bus

4

Electrical meter

Modbus

4

Room operating mode scheduler

-

10

Wireless solution limits

Item

Protocol

System limit
(max. per device/project)

Thread border router (TBR)

Thread

4 per edge controller
(1 TBR device => 1 TBR network)

Thread mesh extender (TME)

Thread

15 per TBR network

Wireless room actuator (WRA)

Thread

20 per TBR/TME device
100 per TBR network

Setpoint scheduler

-

10

For further Thread system limits, see KNX IoT Thread System Description, https://siemens.com/bt/download → ID: A6V14455022.